Stabilizer.



m mam M. PET-TERSON.

STABILIZER.

APPLICATION FILED FEB, n. 1918 Patented Feb. 18, 1919.

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Specification of Letters Patent.

PatentedFebl 18', 19.19.

Application filed February 11, 1918. Seriallio. 216,621.

This invention: relates to a stabilizer for: independently movablemembers tying two together to. prevent displacement, and is especially.suited tol members of: the character described, means.

In. the. embodiments thereof disclosed herein the members compriseelements of a cushion seat, but the invention isnot limited thereto. v y

The objectsof this invention are first, to

provide a stabilizer which will permit movementof-theumembers to andfrom each other,

but? prevent lateral displacement and rotation; and second, toprovideastabilizer of the character described which will permit rocking of: themother. i

I accomplish these objects by means of the the accompanying drawing, inwhich:

Figure 1 is a section through a seat having one form of my stabilizerapplied thereto, the sectionbeing taken onthe line 1-1 of Fig. 2. Fig. 2is an elevationpartly in section oh the seat shown in Fig. 1 with one ofthe deformers and its cotiperatihg absorber removed. to better show thestabilizer. Fig. 3is an elevation partly in section,as seen; looking inthedirectionof the arrows3-3 in Fig. 4:, of a seat having'a modifiedform of stabilizer. Fig. 4 is a section of the seat shown in Fig. 3"Fig. 3.

Referring more particularly to Figs. 1 and 2 of the drawing, 5 indicatesa pillar which supports the seat. Resting thereon is a base 6. The base6 is provided with deformers 7, which contact with absorbers 8 mountedupon the seat 9.

The pillar 5 is provided with a collar 10 upon which the base 6 rests.The upper end of the pillar 6 is formed with a stem 11 which is disposedin a socket on the base 6.

As shown, the base 6 is circular in form, although it may be of anyother shape, and has a tubular socket member 12 secured thereto with theopening registering with a bore in the base 6. The socket tube 12 isslit which are separated by resilient :'Of' which is attached a tensionThe free end of the chain is hooked over embers relative to oneanembodiments of my inventionillustrated in as seen on the line of?" toform. fingers 14: for. attachment ofthe tie" Three deformers indicatedby 7 members.

are. fixedto the base 6. In Fig. 2 the right hand deformer and thecooperating absorber on the seat is removed to show the stabilizer.

The seat 9 has depending from its under side absorbers 8. Theseabsorbers are preferably pneumatically inflated: bulbs. constructionshown, broadly consists of a number 0f pneumatic absorbers 8, each oneof which rests upon bracket hooks 15.

onnecting correspondingfingers 1 F and brackets 15 are tie members. Tiemember 16: comprises a length of chain, to the end spring 17.

finger 14-. The free end of the spring l'Fis hooked over the brackethook, 1 5 and held In place by a cotter pin 18. The length of" tiemember 16 is such that when in position it is under tension. Tie member19' differs from tie member 16, in that, a cable is substituted for thechain. Tie member 20, differs from tie member 16, in that, 'a rod issubstituted for the chain- The tie members shown are the equivalents ofare merely shown difierent,

any specific construction of tie member, in fact, "each may be oneentire spring or formed of resilient material such as rubber.

It is evident that the seat member and the base 6 are independent of-oneanother except} in so far as they are tied to each other-by thetiemembers which comprise a part of the stabilizer.

of the pneumatic absorber and the former; and can rock in any directionor move to and from the base without hindrance by the stabilizer. Thesprings in the tie members take up any slack which occurs by reason ofthe tie members having their radius shortened as the seat and base movetoand from each other. It is evident that substantially no rotation cantake place between the seat and base, and no lateral movement.

In order to prevent any portion of the seat 9 rising above its normalheight, which might occur when the seat tilts, I have added a number ofanchor chains 21, one end of a chain being fixerto the seat 9 and theother to the base 6 When weight is The a deformer 7. Fixed to" the underside of seat 9 are a number of each other, and to indicate that, theinvention is not confined to the useof The seat member rests upon thebase 6 through themedium,

placed on one side of the seat, no part can 7 rise above the normalheight and the pres sure is more equally distributed on the absorbers.

Referrin to Figs. 3 and 4, a modified form of sta ilizer is shown. Thereis a base '22 having deformers 23 mounted thereon,

and a seat 24 having pneumatic absorbers 25 depending therefrom. Fixedto the base 22 are hook brackets 26, there being three. Each hookbracket is provided with oppositelydisposed hooks 27 and 27 Dependingfrom the seat 23 are hook brackets 28.

There are six of the brackets 28. Tie members 29 extend from each of thehook brackets 28 to brackets 26. The tie members 29 are in pairs, sothat one bracket member 26 is held in position between two adjacentbracket members 28. The tie members29 are constructed similar to the tiemembers of the form of seat first described. Anchor chains 30 are alsoprovided to limit the rise of the seat.

' It is evident that there may be movement to and fromrea'ch other ofthe seat members 2% and the base 22, but that there can be nolateral'movement' or rotation of the mem bers relative to each other.The seat and 7 various other structures to which my stabilizer may beapplied.

What I claim is:

1. .The combination of two juxtaposed 'members separated by pneumaticcushions in contact with absorbers and unattached Copies of this patentmay be obtained for thereto, and a stabilizer tying said memberstogether comprising a plurality of pairs of resilient tie members, eachtie member fixed atone end to one of said juxtaposed members and at theother end to the other of said juxtaposed members, each tie member of apair being arranged to pull against the other tie member of the pair.

2. The combination of two juxtaposed members separated by pneumaticcushions in contact with absorbers and unattached thereto, and astabilizer tyin said members together comprising a plura 1ty of pairs ofresilient tie members, each tie member being fixed at one end to one ofsaid juxtaposed members and at the other end to the other of saidjuxtaposed members, each tie member of a pair pulling against the othertie member of the pair substantially in a plane transverse to thecushioning motion of said juxtaposed members.

3. The combination of two juxtaposed members separated by resilientmeans and unattached thereby, and a stabilizer tying said memberstogether comprising a plurality of pairs of resilient tie members, eachtie member being fixed at one end to one of said juxtaposed members andat the other end to the other of said juxtaposed members, each tiemember of apair being arranged to pull against theiother.

4. The combination of two juxtaposed members separated by resilientmeans and unattached thereby, and a stabilizer tying said memberstogether comprising a plurality of pairs of resilient tie members, eachtie member being fixed at one end to one of said juxtaposed members andat the other end to the other of said juxtaposed members, each tiemember of a pair pulling against the other substantially in a planetransverse to the cushioning movement of said juxtaposed members.

In witness that I claim the foregoing, I have hereunto subscribed myname this 2nd day of February, 1918.

I f MAGNUS PETTERSON.

five cents each, by addressing the Commissioner of Patents, Washington,D. 0.

